High strength water soluble plug
US6220350A · kind A · utility
165Cited by
37References
47Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1998 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Dec 1, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus for use in operations performed in conjunction with a subterranean well is provided by the present invention. In one described embodiment, a plug apparatus includes a soluble polymer material, which is utilized in a plug member for blocking flow through a fluid passage. In another described embodiment, a soluble polymer material is utilized in a blocking member for blocking displacement of a displacement member of an apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.